[postgis-users] splitting geometries

[Arnold Helmut Engelmann]

I did some more digging and found this:

http://trac.osgeo.org/postgis/wiki/UsersWikiSplitPolygonWithLineString

It uses some of the older function names (geomunion instead of ST_Union, and boundary instead of ST_Boundary), but it works.

As for splitting polylines, I found this which got me going in the right direction:

http://postgis.refractions.net/pipermail/postgis-users/2007-September/017149.html

Thanks to Kevin (I suspect it's the same Kevin who answered both of these...)!

Regards,

Arnold

From: postgis-users-bounces at postgis.refractions.net [mailto:postgis-users-bounces at postgis.refractions.net] On Behalf Of Arnold Helmut Engelmann
Sent: Wednesday, February 23, 2011 16:03
To: postgis-users at postgis.refractions.net
Subject: [postgis-users] splitting geometries

Anyone know how to split geometries in PostGIS 1.5.2? I would specifically need to be able to split linestrings and polygons (and the "multi" versions of both) using a linestring. I know there is an ST_Split function in version 2.0, but I need to do this in 1.5.3. Is there a multistep method that would get me the same thing?

Thanks,

Arnold Engelmann
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